Air freshener



FIG. 1 is a perspective view of an air freshener, showing my design;

FIG. 2 is a top plan view of the air freshener of FIG. 1, the bottom plan view being a mirror image thereof;

FIG. 3 is a rear elevation of the air freshener of FIG. 1;

FIG. 4 is a front elevation of the air freshener of FIG. 1;

FIG. 5 is a right elevation of the air freshener of FIG. 1; and,

FIG. 6 is a left elevation of the air freshener of FIG. 1. 

I claim the ornamental design for an air freshener, as shown and described. 